Lappet-shearing machinery.



No. 815,938. I I PATENTED MAIL-27, 1906.

W. 0. BRADLEY. I

LAPPEI' SHEARING MACHINERY. APPLIGATIOII FILED JULY 13, 1905'.

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No. 815,938. I PATENTED MAR. 27, 1906. w. c. BRADLEY.

LAPPET SHBARING MACHINERY.

APPLIOATION FILED JULY 13, 1906.

2 SHEETS-SHEET 2.

- UNITED STA ES:

WILLIAM G. BRADLEY, or WOONSOOKET, RHODE ISLAND, ASSIG-NOR To PATENT oFFIoE.

OURTIS 8c MARBLE MACHINE COMPANY, OF WORCESTER, MASSACHU SETTS, A CORPORATION OF MASSACHUSETTS.

LAPPET-SHEARING MACHINERY- Specification of Letters Patent.

Patented March 27, 1906.

Application filed July 13, 1905. Serial No. 269,503.

the loose threads, commonly known as bridges, that extend from one figure to another may occur in any relative position or lie in any direction from transverse to longitudinal in different pieces of cloth or at different inclinations upon the same piece of 20- I mg of all the bridges two or more runs of the goods, thus requiring for the complete shear fabric through the shear with the fabric skewed at different degrees of angularity,

either right or left or both right and left successively, in order to throw up the bridges for I shearing and in "some instances requiring different modifications of the skew at different parts of the same piece of goods. that mechanisms of difierent kinds have heretofore been devised-for imparting a skewto goods of this class; but my invention re- "lates to an improved means adapted for-employment in combination with ordinar shearing machinery, as more fully'he'reina It is known ter explained;

/ 1 The object of my present invention to provide-a convenient, simple, and efiicient means for-supporting a cloth-roll and directing the lappet fabric therefrom to the shearing mechanism and for impartin controlling, and modifying the nature an degree of skew in the fabric, so as to raise the bridges and bring the various sets of bridges more prominently into'position to be properly presented to the shearing-blades without liability of wrinkling the fabric while "it is run through the machine. I attain these objects "by the mechanism explained in the following description, the particular subject matter 5 claimed being hereinafter definitely specified. In the drawings, Figure 1 represents a longitudinals'ectional elevation of such arts of a lappet-shearing mechanism as w l illushorizontal sectional detail,-and Fig. 3 an inner side view, of the bearing devices for supporting the skewing-roll. Fig. 4 represents a front elevation view of the shear-machine.

Fig. 5 is an elevation view of the cloth-roll stand. Fig. 6 is a separate side view of the journal-box and adjusting-arm by which-the respective ends of the skewing-roll are mount ed in connection with the stand or supporting-frame, and Fig. 7 is a front view of the same.

The general construction of the clothshearing machinery in combination with which my invention is designed to be employed may be. of the usual well-known t e or of any suitable form, and, as shown in tlie drawings, comprises principal parts, whereof the reference-letter A denotes the main frame; B, the front tension devices consisting of rolls or rods; F, the friction-roll; O, the shearing-cutters; D, a draft or'feed roll by which the fabric is advanced through the machine;-E, a-'windingup roll'or receiving devices for the sheared fabric; and a, a, a and a indicate suitable guide-rolls'disposed parallel with the shear devices for directing the fabric in its regular course. The parts pertaining to the shearing-machine which are not herein shown and specifically described will be understood by those conversant with the-art and may be arranged and organized for operating in well-known or any suitable manner.

' 'According to my invention the'support or stand G for carrying the primary 0 oth-roll is made portable or unattached to be placed at will at any desired position in relation to the front of theshearing machinery. Said stand is provided with suitable bearings or recesses for the reception and support of the axles 4 of thebeam or roll 3 upon which the .fabric'Lis wound preparatoryto the shearing operations. In connection with the stand G' and preferably also on the front of the shear-machine frame I provide an adjustably-mounted skewing or skew-guiding roll, as at 5 and 25. Each of said skew-guiding rolls'has its journals or'axle-mountings arranged in a manner to permit adjustment of the roll to different degrees of angularity in relation to the transverse axial alinement of the stand or its supporting-frame by a ratrate the nature of my invention. Fig. 2 is a IOG . studs or axis-points 9 to rock dial extension or contraction in the effective length of the carrying means and is also made capable of adjustment in oscillative re lation on the central axis of its connections or points at which the carrying means is joined with the stand or frame. The ournal-bearings or mounting devices at the respective ends of the skewing-roll are each capable of adjustment independently of'the other, thus by their compound adjustments affording facilities for the placement of the skewing-roll in any required position and at any desired degree of right or left obliquity in relation to the cloth-roll and direction of fabric feed, while the portability of the stand permits 01 its being placed central, with the shear more or less at either side thereof, or at any inclination in relation to the alinement of the shearing mechanism as may at any time be desired for executing the work.

For supporting the skewing-roll 5 and effecting its adjustment, as above noted, there is employed at each end of the roll and sesured to the upright frame or stand by a clamp-bolt 6 and nut 7 a longitudinally-slotted arm 10, carrying at one end a swiveling piece or furcated member 12, in which the journal-box 13 is pivotally supported by or swivel in a transverse direction or crosswise to the pivotal movement of the swivel member 12, the axis of the latter member being preferably longitudinal with the arm 10, its stem being supported in a bearing or offset 14 thereon, where it is retained by a collar 16, fixed on the end of the stem by a set-screw or otherwise. The screw-points or axis-studs 9, that support the rockable journal-box 13, are arranged through the projecting fingers of the swivel member 12. The clamp-nut 7 is preferably provided with a flange or hand-Wheel grip as a convenient means for its operation. By shifting the respective arms 10 endwise on their clamping centers 6, more or less, in the same or 1n different directions, as indicated by arrows on Fig. 2, the position of the skew-roll and the degree of angularity or inclination thereof in relation to the center or axial line 66 of the attaching or clamp bolts 6 can be varied as desired, and by oscillative rotative adjustment of the arm or arms 10, together with the swiveling roll-journal bearings 13, about the clamping center or axis 6, as indicated by the arrows on Fig. 3, the position of obliquity or angularity can be changed in relation to the central vertical plane of the cloth-roll and supporting-stand. The arm may incline at either angle, as in full lines, Fig. 3, or as indicated by the dot-anddash line M on the same figure.

One journal of the skewing-roll is provided with a collar 18, secured to lts projecting end outside the bearing-box for the purpose of confining the roll, so that endwise variations due to different adjustments will occur only at one end bearing and will not interfere with the effective skew trend imparted when the roll is operating.

At the front of the shear-machine frame near the friction-roll F a similar skewing-roll 25 is provided which acts on the fabric as it passes from the front tension-guides B to said friction-roll. This secondary skew-roll is mounted in bearings 23, that are SWlX'QlGd or pivoted in swiveling forks carried by longitudinally and oscillatively adjustable attaching-arms 20. Said bearings and arms are made substantially the same as that illustrated in Figs. 2 and 3, so that the roll 25 can be positioned at any desired inclination in relation to the parallel of the front tensionguide B and friction-roll F, the clamping center bolt being at 26 and controlled by the hand-nut 27.

The independent adjustment of the respective roll bearing supports facilitates the ready placing of the skewing roll or rolls for attaining the required and peculiar skew in the fabric best adapted for raising the bridges for advantageous shearing.

I am aware that it is not new to skew lappet fabrics in their presentation to a shearing mechanism for the purpose of raising the bridges, so that they may be sheared ofl'. Hence it will be understood that I do not broadly claim such idea; but my invention has reference to the improved means herein defined for effecting and regulating the skew action.

What I claim is 1. A mechanism for the purpose set forth, comprising a portable stand having bearingrecesses for receiving and supporting the axles of a cloth-roll, a skewing-roll mounted in connection with said stand, means for adjusting said skewing-roll to different degrees of an gularity in relation to a line through the centers of its attaching-points, and means for adjusting the plane of such angularity in relation to the central vertical plane of the stand.

2. In lappet-shearing machinery, the combination, with the shearing machine, of a cloth-roll-supporting stand, a skewing-roll mounted on the frame of said stand with j ournal-supporting means that affords adjustment of the respective roll-journal bearings forward or backward relatively to the central line of the stand, and to higher or lower posi tions, and means for securing the parts at their adjusted positions.

3. In a lappet-shearing mechanism, the combination, with a stand adapted for supporting the roll of fabric for. delivery to the shearing-machine; of a guide-roll, journalbearings therefor pivotally mounted upon swiveling supports, clamping means connecting said supports with the stand, said parts adapted to afford adjustment of the guideroll axis radially toward or from a predetermined center point, and also in a circular are the combination, of the stand having means for the support of a cloth-roll thereon, adj ustable arms attached to said stand by pivotal connection to have oscillative adjustment,

means for clamping said arms rigidly to the stand, a skewing-roll, and journal-bearings for said skewing-roll having compound swiveling connection with said adjustable arms.

5. In combination with a shearing-machine,

i a portable stand having bearings or recesses for supporting a cloth-roll thereon, endwiseadjustable arms connected with saidstand by dpivotal connection to afiord longitudinal an oscillative adjustments of the arm, a skewing-roll, journal-bearing boxes for said skewing-roll, compound swivel devices connecting said bearing-boxes to the respective arms, and means for clamping the arms rigidly at position as adjusted.

6. In a mechanism of the character described, the combination, with the shearing mechanism, the supporting-frame, front tension-guide, and friction-roll of a skewing-roll disposed at the front of the shearing-machine frame between said front tension-guide and friction-roll, and means for sup orting and adjusting said skewing-roll to ifferent degrees of angularity in relation to the frictionroll, or the front tensionuide.

7. In a mechanism 0 scribed, in combination with the shearing mechanism, front tension-guide rods or rolls, and the friction-roll; a skewing-roll dis osed between said front tension-guide an friction-roll, swiveled bearings for said skew-roll carried by longitudinally and oscillative independently adjusting arms, and means for clamping said arms in conne'ctionwith the shearing-machine frame, a portable clothroll-su porting stand provided with a skewing-rol --mounted in said stand, independently adjustable bearing-supports for said skewing-roll com rising longitudinally-adjusting arms pivotal y connected to the stand-frame, and compound swiveling bearing-boxes on said arms, a center pivot or connecting-stud, and a nut for clamping each of the res ective adjusting-arms at posltion as adjuste Witness my hand this 24th day of June,

WILLIAM C. BRADLEY.

Witnesses:

CHAs. H. BURLEIGH, EDWIN H. MARBLE.

the character dey 

